vcontainer: add vruntime distro and multiconfigs

Add minimal vruntime distro for building QEMU blob images:
- conf/distro/vruntime.conf: Minimal distro with vcontainer features
- conf/multiconfig/vruntime-aarch64.conf: aarch64 multiconfig
- conf/multiconfig/vruntime-x86-64.conf: x86-64 multiconfig

The vruntime distro provides a minimal environment for building
Docker/Podman rootfs images used by vdkr/vpdmn.

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/conf/multiconfig/vruntime-x86-64.conf b/conf/multiconfig/vruntime-x86-64.conf
new file mode 100644
index 00000000..d897f398
--- /dev/null
+++ b/conf/multiconfig/vruntime-x86-64.conf
@@ -0,0 +1,15 @@
+# SPDX-FileCopyrightText: Copyright (C) 2025 Bruce Ashfield
+#
+# SPDX-License-Identifier: MIT
+#
+# Multiconfig for vruntime x86-64 builds
+#
+# Used to build minimal container-runtime-capable rootfs for QEMU environment.
+# Supports vdkr (Docker) and vpdmn (Podman) virtual container runtimes.
+#
+# Distro-level configuration (DISTRO_FEATURES, etc.) is in conf/distro/vruntime.conf
+# Kernel features (squashfs, overlayfs) are in recipes-kernel/linux/linux-yocto_%.bbappend
+
+DISTRO = "vruntime"
+MACHINE = "qemux86-64"
+TMPDIR = "${TOPDIR}/tmp-vruntime-x86-64"